Vulnerability Details : CVE-2018-20822
LibSass 3.5.4 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass::Complex_Selector::perform in ast.hpp and Sass::Inspect::operator in inspect.cpp).
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-20822
Probability of exploitation activity in the next 30 days: 0.28%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 68 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-20822
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-20822
-
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20822
-
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
[security-announce] openSUSE-SU-2019:1791-1: moderate: Security update fBroken Link
-
https://github.com/sass/libsass/issues/2671
AddressSanitizer: stack-overflow at Sass::Inspect::operator() (inspect.cpp:977) · Issue #2671 · sass/libsass · GitHubExploit;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
[security-announce] openSUSE-SU-2019:1800-1: moderate: Security update fBroken Link
-
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
[security-announce] openSUSE-SU-2019:1883-1: moderate: Security update fBroken Link
Products affected by CVE-2018-20822
- cpe:2.3:a:sass-lang:libsass:3.5.4:*:*:*:*:*:*:*